Multicomponent alloy composite anticorrosive coating for metal pipe/pipe fitting

A multi-element alloy and anti-corrosion coating technology, which is applied in the coating process of metal materials, pipeline anti-corrosion/rust protection, pipes/pipe joints/fittings, etc., can solve the problem of increased suspended particles, coating foaming, dizziness, nausea, Fever and other problems, achieve the effect of low porosity and excellent anti-corrosion performance
CN102418831AInactive Publication Date: 2012-04-18XINXING DUCTILE IRON PIPES CO LTD
4 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XINXING DUCTILE IRON PIPES CO LTD
Publication Date
2012-04-18
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a multicomponent alloy composite anticorrosive coating for a metal pipe / pipe fitting, which comprises a Zn-Al-Mg-RE multicomponent alloy layer and a hole-sealing finishing layer, wherein the hole-sealing finishing layer is coated on the surface of the Zn-Al-Mg-RE multicomponent alloy layer, the Zn-Al-Mg-RE multicomponent alloy layer comprises the following components by weight percentage: 56-83% of Zn, 16-41% of Al, 0.05-2.0% of Mg and 0.05-1.0% of Re, and the hole sealing finishing layer is an organic or inorganic coating layer. The multicomponent alloy composite anticorrosive coating disclosed by the invention has the advantages of low porosity, good anticorrosive property and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an anti-corrosion coating, in particular to a multi-element alloy composite anti-corrosion coating for metal pipes and pipe fittings. Background technique

[0002] Centrifugal ductile iron pipe is an ideal pipe material for urban water supply and gas pipe network. It has the advantages of high strength, good plasticity and strong corrosion resistance. It has the essence of iron and the performance of steel. It is a replacement product for traditional cast iron pipes and ordinary steel pipes. At present, the surface protective layer of centrifugal ductile iron pipe mainly adopts arc sprayed zinc layer. The main advantage of zinc coating is that it can play a cathodic protection effect on steel, and has a certain self-healing ability, which is mainly reflected in the following three aspects: 1) Zinc coating separates the corrosion medium of steel substrate and avoids their direct contact. 2) When the zinc coating exposes the ste...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More